Longquan sword is one of the representatives of ancient Chinese weapons and one of the famous traditional arts and crafts in China. It has a history of more than 2500 years. It is said that at the end of the spring and Autumn period, Ou Yezi, a sword master of the state of Yue, forged three famous swords in Qinxi mountain, Longquan, namely Longyuan, tai'a and Gongbu. And take Longyuan as the township name. Later, due to avoiding the taboo of Li Yuan, the emperor of the Tang Dynasty, he replaced "Yuan" with "spring", which was renamed Longquan. Since then, it has been known as Longquan sword and is famous all over the world. Longquan sword, also known as the seven star sword, is named for its big dipper seven star pattern on its body, and also becomes one of the unique "trademark" contents of Longquan sword. The seven star sword has been famous for thousands of years. According to the records of Wuyue spring and autumn by Zhao Ye of the Eastern Han Dynasty, in the spring and Autumn period, Wu Zixu, the deceased Minister of Chu state, ran to Wu, and his father helped him cross the river on the way. Wu Zixu "is the sword to solve all kinds of gold and said to his father:" there are seven stars in the sword of our former king, which is worth all kinds of gold, so as to answer each other. ". Hongzhitai, a poet of Sui and Tang Dynasties, said, "the sword shines on seven stars, and the horse controls thousands of gold.". Without knowing that he is in martial arts, he describes a warrior with seven stars sword in his hand, galloping on the battlefield, and having outstanding fighting skills. There are many miraculous and extraordinary legends about the seven star sword. " Ouyang Xiu's seven star sword can not only shine in the dark room, but also predict the weather changes. The seven brilliant stars on the sword make the sword extremely sharp and cold. It can suppress evil spirits and eliminate crafty people. Its power can be described as astonishing

From the aspect of appearance, the hilt made of special wood has lost its luster and has auspicious patterns. The scabbard is made of two pieces of red sandalwood wood and fixed with three pieces of brass. The body of the sword is made of steel and gold. The blade is not cut. Both sides of the sword are engraved with Dragon Phoenix and Big Dipper seven star patterns. After years of baptism, though there are traces of oxidation on the sword body, the patterns are still clear and visible, which is rare.

The Big Dipper seven stars are the most eye-catching stars in the northern hemisphere. The names of these seven stars are "Tianshu", "Tianxuan", "Tianji", "Tianquan", "Yuheng", "Tianyang" and "Yaoguang", collectively known as the constellation Ursa Major. Connect the seven stars with lines, like a handle. In the eyes of the ancients, Beidou was like the car of the emperor of heaven, running in the center of the heaven. It was the yardstick to measure the time, season and affairs of the world, so it was regarded as the God that dominated everything. Therefore, the ancient ancestors decorated the pattern of the Big Dipper seven stars on their swords, which was based on the worship of the Big Dipper seven stars. At the same time, they expressed their yearning for the seven star sword, which was extremely powerful and invincible because of the spirit of the sky.

After the Eastern Han Dynasty, the sword withdrew from the battlefield of actual combat. In addition to its adornment function in the public service system, another use of the sword was to become a magic weapon in the hands of Taoists with the rise of Taoism. Taoism's "Beidou scripture" said: "the North stars hang down in the sky while the stars arch. They are the cardinals of creation and the masters of human beings and gods. Three realms of Xuanwei control all spirits. To raise the big dipper to the highest level. As a result, the seven star sword is infused with "magic power", which has a variety of strange functions and endless magic power, and is said to be magical. According to the "Dongxuan Lingbao Daoxue Keyi", it's the title of sword. In the dense magic ring, it's called "the God Jinhui spirit, which makes me live forever, does not harm all evils, and inclines heaven and earth." It can be seen that the seven star sword has great magic power.

In the hometown of seven star sword, there is a beautiful legend: more than 25000 years ago, Ou Yezi, the ancestor of sword casting, cast his sword at the foot of Qinxi mountain in Longyuan town. There are seven wells here, arranged in the shape of the Big Dipper. When the first pair of male and female swords were made, they suddenly turned into a golden soaring in the clouds. In order to recall ouyezi's achievements in forging swords, the swords were all engraved with the patterns of Big Dipper, seven stars and dragon and Phoenix. Therefore, the ancients had a poem: "the swords in the Yingying box are three feet clear in autumn. There are seven star scripts on it, which are called "dragon at night". Casting this pair of male and female, cloud is Ou Yesheng. " The seven star sword has been handed down for thousands of years, and the unique skills of hundreds of generations have been handed down.